中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 10 No. 3 June 2000 |
homogeneity of ultrafine tungsten powder①
（National Key Laboratoryfor Powder Metallurgy,
Central South University of Technology, Changsha 410083, P.R.China）
Abstract:The influence of phase components of tungsten oxide on homogeneity of ultrafine tungsten powder by conventional hydrogen reduction techniques was studied. Results show that phase components of tungsten oxide play a crucial role on homogeneity of metal tungsten powder; ultrafine and homogeneous tungsten powder can be produced from oxides which consist of only one phase. Due to the different reduction rates (or different reduction paths) of oxide which com-
prises different phases, the multi-phase components tungsten oxide leads to a fine but in homogeneous metal tungsten powder.
Key words: tungsten oxide; phase components; ultrafine tungsten powder; homogeneity
